Switch for b batteries



Jan. 13, 1925.

F. G. MITCHELL SWITCH FOR B BATTERIES Filed April 15. 1924 Patented Jim. 13, '1925.

UNITED s'rATEs.

1,5 3,032 PATENT OFFICE.

rnannmcx G. MITCHELL, or n'monrrnnn PARK, new JERSEY, ASSIGNOR 'ro Fams'rocx ELECTRIC couramr, or LONG ISLAND CITY, NEW Yon-K, A oonromrron 01' WEST VIRGINIA.

Application filed April 15,

l and State of New Jersey, has inventedcertain new and useful Improvements in Switches for B Batteries, of which the followingis a specification. I V The resent invention relates to switches 1 for variable voltage batteries and consists in the combinations and, arrangements of ale ments hereinafter described and particularly set forth in the accompanying claims.

With the use of the so-called B-batteries in radio, selective voltages are now obtained duly by manually connecting the terminal wire with that binding post of the battery having the voltage desired, and this manipulation has the disadvantages of requiring both hands of the operator, prolonged interruption, and distraction. It is toovcrcome these faults that the device disclosed herein is proposed.

The invention, therefore, has for its pur- 5 pose to provide a switch adapted to any type of B-battery used in radio wherein the different voltages may be selected in a quick, easy, and convenient manner and by a simple mani lation of the hand.

A furt er purpose of the invention is to provide a self contained switch of this character to the end that the same may be manufactured and sold as a single unit and adapted for. ready attachment to any type of B- battery without in any way altering said battery or necessitating the use of separate attaching devices. p

The invention is shown by way of illustration in the accompanying drawings wherein:

Figure 1 is a top plan view showing the I switch applied to a pe of B-battery; Figure 2 a side elgratidnal view thereof; and

Figure 3a plan view of the switch per se'. Referring 'to the construction in further detail B designates any usual type of B- battery employed in radio having the several binding posts A adapted for selective connection with the conductor wire (not shown) through the threaded 'nuts G.

As above pointed out, the B-batteries now used in radlo require direct attachment of the conductor wire with each of the bin posts A toobtain the particular voltage reof said connecting e swrrcn r03. 3 Barrmuns.

1924. Serial No. 796,660.

cured to the several binding posts A, of any B-battery, and when so applied, said arms are secured throu h the several nuts C as shown. The angu ar and radial adjustment features of the device readily adapts'the switch for ready application to B-batteries quite regardless of the relative distance and arrangement of its binding posts. V The contact maker consists of a member 8 pivoted at .9 on the plate 4 and having an inturned end 10 adapted to have conductive contact with the portions 11 of the several arms 5 as'sho'wn. A suitable terminal clip F preferably a Fahnestock clip, is secured to the free end 12 of the arm 8 and serves to move the contact maker for selecting different voltages and for connecting with the wire completing the circuit.

It is to be understood that I do not desire to limit myself to, the precise details of construction and arrangement herein set forth, as it is obvious that various modifications may be made therein without departing from the essential features of the invention.

- What is claimed as new is z- 1. A switch for electric batteries having binding posts comprising a non-conductive base,- connecting elements pivotally assem bled on said base and radiallya'djustable-on the binding posts, and a contact maker adapted to selectively connect with any one of said connecting elements.

2. A switch for electric. batteries comprising a plurality of pivotally assembled contact arms radially slotted [or battery conmotions, and a selective contact maker.

3. The combination with a battery hav-'-.

ing binding posts of connecting elements providin radially adjustable contacts for the bin 'ng posts, and a contact maker adapted to selectively connect with any one ements.

4. Arswitch for batteries having binding posts, comprising a non-conductive base, contact arms adapted for radial adjustment with said binding posts,'and a selective contact maker; having a lip for contacting with said arms, said contact maker and arms being pivotally mounted on the base.

5. A switch for batteries having binding posts, comprising contact arms angularly and radially adjustable with regard to the binding posts, a selective contact maker for said contact arms, and a non-conductive,

common base for said arms and contact maker.

6. .3; switch for batteries comprising a plurality of pivotally assembled contactture.

' FREDERICK. G. MITCHELL. 

